Orca Wetsuit Size Chart The new Sonar provides the perfect mix of flexibility and buoyancy – now offering flexibility, which some brands reserve for their elite wetsuits, at an intermediate budget. Carefully placed Aerodome2 panels lift the body into the most efficient swimming position, saving you time in the swim. If you’ve been a fan of the Sonar over past years then this season’s evolution is one you don’t want to miss out on! Features: – Flexibility: The new SuperStretch lining combined with thinner InfinitySkn 1.5mm arms make the Sonar even more flexible through the full rotation of the stroke – The placement of 4mm Aerodome 2 in the lower back of the suit helps to lift the body into the most efficient swimming position. – Male specific front buoyancy panels create the optimum buoyancy balance – SCS coated Yamamoto neoprene is used in special Hydrolite panels in the ankles of the suit combined with a stretchy lining that absorbs less water to improve buoyancy and is super sleek, making the Sonar even faster to remove in transition.